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Gaurang S Shah
BACKGROUND Streptococcus acidominimus, which belongs to the viridans streptococci group, is rarely considered pathogenic in humans. However, over the past 10 years, this bacterium has been reported to cause serious infections in humans, particularly among the critically ill. This article is the first case report of pyogenic ventriculitis (PV) and meningitis caused by S. acidominimus in North America. CASE REPORT A 49-year-old Asian male presented to the emergency department with complaints of a headache, fever greater than 37...
March 22, 2018: American Journal of Case Reports
Hiroshi Nagano, Yuki Sobue, Hayato Matsuyama, Shoichiro Saito, Hiroki Sakai, Firoj Alom, Yasuyuki Tanahashi, Toshiaki Ishii, Toshihiro Unno
Muscarinic acetylcholine receptors have been suggested to be implicated in arginine-vasopressin secretion because intraventricular muscarinic agonist administration induces arginine-vasopressin release into the circulation. Although which subtype is involved in the regulation of arginine-vasopressin secretion is unclear, M2 receptors have been reported to be highly expressed in the hypothalamus. In the present study, M2 receptor knockout mice were used to elucidate whether M2 receptor regulates arginine-vasopressin synthesis in the paraventricular nuclei and supraoptic nuclei of the hypothalamus...
March 21, 2018: Journal of Endocrinology
Deok Su Sin, Myoung Hyoun Kim, Soon-Ah Park, Min Cheol Joo, Min Su Kim
Objective: The purpose of this study is to investigate predictors of crossed cerebellar diaschisis (CCD), and the effects of CCD on functional outcomes including motor function, activities of daily living, cognitive function, and ambulation 6 months after onset in patients with intracerebral hemorrhage (ICH). Methods: A total of 74 patients experiencing their first ICH were recruited. If the asymmetric index was more than 10% using single photon emission computed tomography (SPECT), a diagnosis of CCD was confirmed...
February 2018: Annals of Rehabilitation Medicine
Michael Young, Matthew Putty, Keith Schaible
We present an exceptionally rare case of spontaneous otogenic intraventricular pneumocephalus which resulted in a decline in mentation and neurologic deficit. The case involves a 58-year-old female who was subsequently treated with ventriculostomy and middle fossa craniotomy with repair of bony defect and dural closure. This case demonstrates an unusual presentation of pneumocephalus necessitating ventriculostomy in addition to the traditional repair of a cerebrospinal fluid fistula.
March 16, 2018: World Neurosurgery
M Kotowski, Z Litwinska, P Klos, E Pius-Sadowska, E Zagrodnik-Ulan, P Ustianowski, J Rudnicki, B Machalinski
Umbilical cord blood (UCB), rich in stem/progenitor cells, is partially eliminated from the bloodstream during childbirth because the cord is immediately clamped. We hypothesize that transfusion of autologous UCB to premature infants after delivery could serve as an adjuvant modality for preventing the development of prematurity-related complications. We randomly enrolled 20 preterm infants born before 32 weeks of gestational age (GA), all of whom developed anemia, necessitating transfusion of red blood cells (RBCs)...
December 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
Manlio F Márquez
No abstract text is available yet for this article.
March 2, 2018: Journal of Electrocardiology
Mårten Unnerbäck, Eric L Bloomfield, Sven Söderström, Peter Reinstrup
Current methods to measure cerebral blood flow (CBF) in the neuro critical care setting cannot monitor the CBF continuously. In contrast, continuous measurement of intracranial pressure (ICP) is readily accomplished, and there is a component of ICP that correlates with arterial inflow of blood into the cranial cavity. This property may have utility in using continuous ICP curve analysis to continuously estimate CBF. We examined the data from 13 patients, monitored with an intraventricular ICP device determining the pulsatile amplitude ICPamp as well as the area under the ICP curve (AUCICP )...
March 16, 2018: Journal of Clinical Monitoring and Computing
Alain Cunqueiro, Meir H Scheinfeld
Intracranial gas is commonly detected on neuroimaging. The recognition of this finding can at first blush be unsettling. Being able to localize this gas to a specific compartment: intraarterial, intravenous, intraparenchymal, subdural, epidural, subarachnoid and intraventricular, is the first step in determining the importance of the gas. Determination of the route of entry: through the skull, extension from a paranasal sinus or the mastoid air cells, via the spine, or trans-vascular, is the other important factor in determining potential consequences...
March 15, 2018: Emergency Radiology
Khaled Elshazly, Varun R Kshettry, Christopher J Farrell, Gurston Nyquist, Marc Rosen, James J Evans
BACKGROUND: Giant pituitary adenomas represent a surgical challenge. We present the results of the endoscopic endonasal approach (EEA) for giant pituitary adenomas. METHODS: We retrospectively reviewed medical records of 55 patients with giant pituitary adenomas (> 4 cm in maximum diameter) that underwent an EEA from 2008 - 2016. Factors affecting the extent of resection (EOR) were evaluated. RESULTS: Mean age was 55.5 years. All tumors were non-functional except in four patients (GH-secreting [2], ACTH-secreting [1], prolactinoma [1])...
March 12, 2018: World Neurosurgery
Alireza Sadeghnia, Behzad Koorang Beheshti, Majid Mohammadizadeh
Background: Considering all the latest achievements in neonatal respiratory care, bronchopulmonary dysplasia (BPD) is still among the most prevalent morbidity causes in premature infants. Involvement in this process results in longer period of hospitalization for the newborn and in the long run makes the living conditions more difficult. Taking the multifactorial pathogenesis into account, approaches to tackle chronic lung disease (CLD) are mainly focused on interventions and prevention procedures...
2018: International Journal of Preventive Medicine
Rik Houben, Floris H B M Schreuder, Kim J Bekelaar, Danny Claessens, Robert J van Oostenbrugge, Julie Staals
Background: The intracerebral hemorrhage (ICH) score is a commonly used prognostic model for 30-day mortality in ICH, based on five independent predictors (ICH volume, location, Glasgow Coma Scale, age, and intraventricular extension). Use of oral anticoagulants (OAC) is also associated with mortality but was not considered in the ICH score. We investigated (a) whether the predictive performance of ICH score is similar in OAC-ICH and non-OAC-ICH and (b) whether addition of OAC use to the ICH score increases the prognostic performance of the score...
2018: Frontiers in Neurology
Kentaro Ando, Yuji Nakamura, Mihoko Hagiwara-Nagasawa, Hiroyuki Harada, Hiroyoshi Miyamoto, Naoki Inamura, Kan Takagi, Ai Goto, Koki Chiba, Nur Jaharat Lubna, Hiroko Izumi-Nakaseko, Atsuhiko T Naito, Atsushi Sugiyama
In order to better understand the variability of pharmacodynamic and pharmacokinetic profiles of terfenadine between the previous studies as well as to qualitatively and quantitatively examine the proarrhythmic potential of its major active metabolite fexofenadine in comparison with that of terfenadine, we directly compared their electropharmacological effects with halothane-anesthetized dogs (n = 3). For this purpose, we adopted a cross-over design, which can directly compare the effects of terfenadine and fexofenadine under the identical metabolic condition...
2018: Journal of Toxicological Sciences
Joseph B Cantey, Kelsey R Anderson, Ram R Kalagiri, Lea H Mallett
BACKGROUND: Coagulase-negative staphylococci (CoNS) are the most common cause of late-onset sepsis in the neonatal intensive care unit (NICU) and usually require vancomycin treatment. Our objective was to determine whether CoNS are associated with neonatal morbidity and mortality. METHODS: This was a retrospective cohort study of very-low-birth-weight (VLBW, ≤ 1500 g) infants from 1989 to 2015. Exclusion criteria were major congenital anomaly or death within 72 h...
March 13, 2018: World Journal of Pediatrics: WJP
Zbynĕk Straňák, Simona Feyereislová, Peter Korček, Eugene Dempsey
Postnatal adaptation in preterm newborn comprises complex physiological processes that involve significant changes in the circulatory and respiratory system. Increasing hemoglobin level and blood volume following placental transfusion may be of importance in enhancing arterial oxygen content, increasing cardiac output, and improving oxygen delivery. The European consensus on resuscitation of preterm infants recommends delayed cord clamping (DCC) for at least 60 s to promote placenta-fetal transfusion in uncompromised neonates...
2018: Frontiers in Pediatrics
Peter Y M Woo, James T F Zhuang, Jason M K Ho, Andrew Seto, Hoi-Tung Wong, Kwong-Yau Chan
Leptomeningeal spread and hydrocephalus are increasingly recognized as late disease complications of glioblastoma with almost a quarter of patients requiring early cerebrospinal fluid shunting. The neurosurgeon is challenged with maintaining shunt patency when tumor disease progression is rapid and adjuvant oncologic therapy has yet to be initiated. We describe our experience in treating a young female with diffuse glioblastoma leptomeningeal spread and communicating hydrocephalus who had several episodes of shunt obstruction due to intraluminal tumor cell-fibrin deposits...
March 13, 2018: Acta Neurochirurgica
Joshua T Prickett, Brendan J Klein, Christopher M Busch, Joshua A Cuoco, Lisa S Apfel, Eric A Marvin
Intraventricular meningiomas are uncommon intracranial tumors and infrequently present with hemorrhage. With only 10 reported cases in the literature, it is exceedingly rare for meningiomas of the ventricular system to present with hemorrhage. To our knowledge, this is the first report of a patient presenting with an acute intraventricular hemorrhage in relation to a ventricular meningioma suspected to be radiation induced. In addition, we review the current literature on hemorrhagic intraventricular meningiomas and review the natural history of radiation-induced meningiomas...
January 2018: Journal of Neurological Surgery Reports
Keita Shibahashi, Kazuhiro Sugiyama, Yoshihiro Okura, Hidenori Hoda, Yuichi Hamabe
BACKGROUND: Data on traumatic intraventricular hemorrhage (IVH) are currently limited, and therefore, the condition is not fully understood. The aim of this study was to determine the epidemiology of traumatic IVH and its effects on outcome in patients with blunt head trauma. METHODS: Using a nationwide trauma registry-the Japan Trauma Data Bank, we identified patients who underwent head computed tomography (CT) after blunt head trauma and had intracranial injuries between 2004 and 2015...
March 9, 2018: World Neurosurgery
Ralph T Schär, Christa Schwarz, Nicole Söll, Andreas Raabe, Werner J Z'Graggen, Jürgen Beck
OBJECTIVE: Early postoperative patient surveillance after removal of intraventricular tumors is often hindered by delayed awakening and prolonged somnolence. The objective of this study was to analyze the incidence of early critical postoperative events after elective craniotomies for intraventricular tumors in adults as compared to extraventricular lesions. METHODS: An observational comparative study was conducted on adult patients who had undergone first-time elective craniotomies from November 2011 until August 2016...
March 7, 2018: World Neurosurgery
Achim Fieß, Ruth Kölb-Keerl, Alexander K Schuster, Markus Knuf, Bernd Kirchhof, Philipp S Muether, Jacqueline Bauer
PURPOSE: The objective of this study was to investigate the relationship between visual acuity, peripapillary retinal nerve fibre layer (pRNFL), retinal thickness at the fovea and other factors with the neurologic status of former preterm children. METHODS: In this cross-sectional hospital based study in a maximum care tertiary centre, detailed anthropometric and ophthalmological data of former preterm children ranging from 4 to 10 years of age with a gestational age (GA) ≤32 weeks were assessed...
March 9, 2018: Acta Ophthalmologica
Masaomi Koyanagi, Hitoshi Fukuda, Masaaki Saiki, Yoshihito Tsuji, Benjamin Lo, Toshinari Kawasaki, Yoshihiko Ioroi, Ryu Fukumitsu, Ryota Ishibashi, Masashi Oda, Osamu Narumi, Masaki Chin, Sen Yamagata, Susumu Miyamoto
OBJECTIVE Shunt-dependent hydrocephalus (SDHC) may arise after aneurysmal subarachnoid hemorrhage (aSAH) as CSF resorptive mechanisms are disrupted. Using propensity score analysis, the authors aimed to investigate which treatment modality, surgical clipping or endovascular treatment, is superior in reducing rates of SDHC after aSAH. METHODS The authors' multicenter SAH database, comprising 3 stroke centers affiliated with Kyoto University, Japan, was used to identify patients treated between January 2009 and July 2016...
March 9, 2018: Journal of Neurosurgery
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